Caliber 3135 seconds hacking

[Chgi]

Hi! I have a newbie question. While I'm setting the time on my Datejust, the seconds hand "follows" (in a range of two consecutive markers) the other hands as I move them back or forth.
For example, after seconds are stopped at 0, when setting time backwards the seconds hand will reach 59, and setting forward it will return to 0.
Is it normal?

[Rikki]

Bcause it's new the tolerances are pretty tight and this occasionally happens ,it is always best to set the hands clockwise as it keeps the gear lash all going in one direction tightening up everything. Rik

[Chgi]

Thank you Rik. But what do you mean with "the tolerances are pretty tight and this occasionally happens"?

[Chgi]

Further details:

• The seconds hand shifts by a half marker, not a full one. And just when setting the time backwards first, then moving forward. If I just move forward the hand remains at 0.
• Similar thing when I quick-set the date, but with the hours and minutes hands that make a rapid "leap" of a half marker and then return to their previous positions.

[Rikki]

It is called gear lash when each gear makes contact to the gear next to it each tooth is hitting the tooth in a going forward motion when you turn the hands backwards now all the teeth have to go backwards to the tooth behind them that little gap created by all the gaps on all the gears is lash. When a watch is would up it puts forward tension on all the gears when you back up the gears you are temporarily removing that tension causing a minute gear slop.The reason your sweep second moves slightly backwards. Rik

[sgt10p]

Rik, great insight, I always set the time on my watch by a final anti clockwise movement. I now know better. Thanks.

Pete

[Chgi]

Thank you for the explanation Rik, and happy new year to all .
You said it occasionally happens: so do you think it is a fault, to be repaired, or it's just a matter of age that requires a standard service?

Pete, in his first post Rik said to set clockwise